<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>html样式</title>
</head>

<body>

    <head>
        <style type="text/css">
            h1 {
                color: red
            }

            p {
                color: blue
            }
        </style>
    </head>

    <body>
        <h1>header 1</h1>
        <p>A paragraph.</p>
    </body>


</body>

</html>